C08B 3/20
Esterification with maintenance of the fibrous structure of the cellulose
Official title: Esterification with maintenance of the fibrous structure of the cellulose (surface esterification of textiles D06M13/00)
C08B3/20 (Esterification with maintenance of the fibrous structure of the cellulose) appears on 32 US grants and 49 published applications in this corpus.
Search patents in C08B- Granted patents
- 32
- Published applications
- 49
- Assignees
- 42
- Inventors
- 124
- Latest grant
- 24 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 1 | 1 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 2 |
| 2013 | 0 | 4 |
| 2014 | 2 | 3 |
| 2015 | 2 | 2 |
| 2016 | 3 | 2 |
| 2017 | 1 | 3 |
| 2018 | 3 | 7 |
| 2019 | 1 | 2 |
| 2020 | 4 | 2 |
| 2021 | 4 | 4 |
| 2022 | 1 | 5 |
| 2023 | 2 | 2 |
| 2024 | 2 | 3 |
| 2025 | 2 | 4 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Fibrous cellulose, fibrous cellulose composite resin, and method for manufacturing fibrous cellulose24 Feb 2026US 12,559,578 B2Daio Paper Corporation
- Surface-hydrophobicized cellulose nanofibers for oily thickener, oily thickener composition containing same, cosmetics and hydrophobicized cellulose nanofiber complex for oily thickener containing same, oily thickener composition containing same, and cosmetics containing same23 Sep 2025US 12,419,825 B2Chuetsu Pulp & Paper Co., Ltd
- Ply fibrous product20 May 2025US 12,305,336 B2Essity Hygiene and Health Aktiebolag
- Fine cellulose fibers and production method therefor, nonwoven fabric, and fiber-reinforced resin and production method therefor10 Dec 2024US 12,163,287 B2Asahi Kasei Kabushiki Kaisha
- Fibrous cellulose and method for manufacturing the same, and fibrous cellulose composite resin and method for manufacturing the same18 Jun 2024US 12,012,469 B2Daio Paper Corporation
- Cellulose esters and cellulose ester fibers having recycled content from multiple sources5 Mar 2026US 2026/0062502 A1Eastman Chemical Company
- Method for producing cellulose-fiber-containing material, method for producing reaction cellulose fibers, and method for producing reaction microfibers4 Dec 2025US 2025/0369189 A1Daio Paper Corporation
- Method for preparing a thermoplastic composition19 Jun 2025US 2025/0197578 A1
- Method for preparing a thermoplastic composition5 Jun 2025US 2025/0179253 A1
- Method for preparing a thermoplastic composition29 May 2025US 2025/0171594 A1
Most cited
By later US patents
- Surface-modified cellulose microfibrils, method for making the same, and use thereof as a filler in composite materials94US 6,117,545 ARhodia Chimie · 2000
- Heterogeneous thiol-ene click modifications of solid polysaccharide-based materials44US 9,447,195 B2Organoclick AB · 2016
- Method for preparing cellulose acetate fibers35US 6,184,373 B2Eastman Chemical Company · 2001
- Methods of preparing polysaccharide sheets for esterification31US 8,920,520 B2Celanese Acetate LLC · 2014
- Highly carboxylated cellulose fibers and process of making the same17US 6,627,750 B2Rayonier Inc. · 2003